n. Literally read, the anal aftermath of sucking down an entire tube of your choice of cookie dough; v. participating in said squishy ritual.

Person 1: Holy Crap. That dough dump was way too mushy for
my liking, but I feel SO much better!
Person 2: Wow. Sounds pleasant/brutal. What did it look like?
Person 1: Well, come here. Watch this video of 2 girls with
me and you'll see......

n. Phrase used to describe dropping a seriously large amount of money, dough, on any given purchase at any given time. Can also be used as an adjective, when saying you are Dough-Dump'ing'- In the process of dropping an Ass-load of money on any purchase.

Hey Jerry! My dough dump at the whorehouse turned out to be very profitable in my soul and in my bedroom!

Jay-Z's charity contributions ain't got shit on the dough I be dumpin' on the AIDS research foundation!